Truncated form screw ring-gauges for pipe cylindrical threads from 1/16" up to 3 3/4" nominal diameter. Construction and basic sizes
STANDARD published on 1.1.1974
Designation standards: GOST 18930-73
Publication date standards: 1.1.1974
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: Russian technical standard
Category: Technical standards GOST
Implemented changes and corrections:
Amd. 8.81